Digestive tract hemostat for digestive system department

Abstract

The invention relates to the technical field of digestive tract hemostasis, in particular to a digestive tract hemostat for the digestive system department. The fixed sleeve is fixedly mounted on the inner side wall of the insertion end of the insertion tube; the four arc-shaped plates are distributed in an annular array and are fixedly mounted at one end, far away from the insertion pipe, of the fixed sleeve; and the holding plate is fixedly mounted at one end, far away from the fixed sleeve, of the insertion tube. Compared with the prior art, after the pesticide spraying nozzle is connected with the pesticide pump through the quick-plug connector, the angle of the pesticide spraying nozzle can be adjusted according to the condition of a bleeding point, the guide opening is arranged to be S-shaped, so that the angle of the pesticide spraying nozzle can be changed when the guide block slides in the guide opening, pesticide spraying operation is more flexible, and the pesticide spraying effect is better. Meanwhile, when the length of the bleeding point is large, the medicine spraying nozzle can conduct swinging medicine spraying, and it is further ensured that the bleeding point can be subjected to comprehensive hemostasis in time.

Description

Technical Field

[0001] The invention relates to the technical field of digestive tract hemostasis, in particular to a digestive tract hemostatic device for gastroenterology. Background Art

[0002] Gastrointestinal hemostat is an important tool in the medical field for controlling and treating gastrointestinal bleeding. Gastrointestinal hemostat generally refers to a type of medical device that can be used to stop bleeding inside the gastrointestinal tract. According to its working principle and application method, gastrointestinal hemostat can be divided into many types, such as upper gastrointestinal hemostat, endoscopic hemostatic clip, suture device, etc.

[0003] After searching, the Chinese patent with publication number CN115956973A discloses a gastrointestinal hemostat for gastroenterology, including a tube body, a spreading mechanism is rotatably provided at one end of the tube body, an adjustment mechanism for opening and closing the spreading mechanism is slidably provided on the tube body, and the tube body includes an inner tube body and an outer tube body, a camera is provided at one end of the inner tube body close to the spreading mechanism, and a handheld device is provided at one end of the inner tube body away from the camera. By setting a rotatable support rod, the bleeding point is fully exposed, and the bleeding agent is injected into the bleeding point through the hole groove at the end to stop bleeding. By closing the support rod, the bleeding site can also be clamped to play the role of a hemostatic clamp. By setting an air bag on the outer tube body, after inflation, it can have a certain compression effect on the surrounding tissues, play the role of compression hemostasis, and combine multiple hemostasis methods to speed up the hemostasis process. However, this technical solution still has the following disadvantages when it is actually used:

[0004] During the treatment of gastrointestinal bleeding, if the bleeding site is relatively long, or the specific location of the bleeding point deviates from the corresponding area of ​​the medicine nozzle used, the doctor often cannot immediately and effectively spray the bleeding point, but needs to first fine-tune the position of the device to ensure that the medicine can reach the bleeding site accurately. This extra step not only significantly prolongs the overall treatment time, causing the patient to suffer longer pain, but also brings greater operational burden and psychological pressure to the doctor.

[0005] Therefore, the present application provides a gastrointestinal hemostatic device for gastroenterology to meet the needs of rapid spraying of bleeding points to stop bleeding. Summary of the invention

[0006] In view of this, the purpose of the present invention is to provide a gastrointestinal hemostatic device for gastroenterology to solve the problem that the adjustment of the medicine nozzle affects the treatment time.

[0007] Based on the above purpose, the present invention provides a digestive tract hemostatic device for gastroenterology, comprising:

[0008] Insertion tube;

[0009] A fixed sleeve, fixedly mounted on the inner side wall of the insertion end of the insertion tube;

[0010] Four arc-shaped plates are distributed in a circular array and fixedly mounted on an end of the fixed sleeve away from the insertion tube;

[0011] A gripping plate, fixedly mounted on an end of the insertion tube away from the fixing sleeve;

[0012] An expansion mechanism is arranged on the inner side of the fixed sleeve;

[0013] A medicine spray nozzle is arranged inside the fixed sleeve;

[0014] The swing mechanism is arranged inside the spreading mechanism.

[0015] Preferably, the expansion mechanism comprises:

[0016] A driving plate is slidably mounted on the inner wall of the fixed sleeve through a sliding groove and a sliding block;

[0017] A connecting sleeve, fixedly mounted on the side wall of the driving plate;

[0018] Four adjusting gears are rotatably mounted between opposite ends of the four arc-shaped plates via a rotating shaft;

[0019] Four supporting claws are arranged on the outer walls of the four adjusting gears;

[0020] Four fixed racks are distributed in an annular array and fixedly installed on the outer wall of the connecting sleeve, and the fixed racks are meshed with the adjusting gear;

[0021] A pull wire is fixedly mounted on one end of the driving plate away from the connecting sleeve, and the end of the pull wire away from the driving plate passes through the outer wall of one end of the insertion tube located on the gripping plate;

[0022] Four groups of connection mechanisms are respectively arranged at the connection positions between the four adjusting gears and the supporting claws.

[0023] Preferably, the teeth on the adjusting gear are arranged at one quarter of the outer wall of the adjusting gear, and the width of the adjusting gear is the same as that of the supporting claw.

[0024] Preferably, the connecting mechanism comprises:

[0025] A connecting groove is provided on the outer wall of the adjusting gear;

[0026] A connecting rod, fixedly mounted on one end of the support claw connected to the adjusting gear, and the connecting rod is slidably connected to the connecting groove;

[0027] a spring, disposed between the inner side wall of the connecting groove and the end of the connecting rod;

[0028] Two positioning hemispherical heads are symmetrically fixedly mounted on one end where the support claw is connected to the adjusting gear;

[0029] Two positioning grooves are symmetrically arranged on the outer wall of the adjusting gear.

[0030] Preferably, the positioning hemispherical head is matched with the positioning groove, and the positioning hemispherical head is made of rubber material.

[0031] Preferably, the swing mechanism comprises:

[0032] A fixing plate, fixedly mounted on the inner wall of the connecting sleeve;

[0033] A guide opening is provided on the top surface of the fixing plate;

[0034] A guide block is slidably mounted on the inner side wall of the guide opening, and the spray nozzle is fixedly connected to the guide block;

[0035] A fixing rod, fixedly mounted on one end of the spray nozzle away from the guide block;

[0036] A connecting ring, rotatably sleeved on the outer wall of the fixing rod;

[0037] The operating wire is fixedly mounted on the outer wall of the connecting ring, and one end of the operating wire away from the connecting ring passes through the driving plate and the outer wall of one end of the insertion tube located on the gripping plate in sequence.

[0038] Preferably, the guide opening is configured in a serpentine shape, and an operating handle is fixedly mounted on one end of the operating wire and the pull wire located outside the insertion tube.

[0039] Preferably, a drug guiding tube is provided on the outer wall of the drug spray nozzle, and the end of the drug guiding tube away from the drug spray nozzle sequentially passes through the driving plate and the outer wall of one end of the insertion tube located on the grip plate.

[0040] Preferably, a quick-connect connector is fixedly mounted on one end of the drug guiding tube located outside the insertion tube.

[0041] Preferably, the outer wall of the adjusting gear is in contact with the end of the claw, and one end of the claw away from the adjusting gear is arranged in a bent shape.

[0042] Beneficial effects of the present invention:

[0043] 1. This gastrointestinal hemostat for gastroenterology, by setting a fixed sleeve and a spreading mechanism, designing four spreading claws to be inserted into the gap of the covering, and using a pull wire to push the driving plate to slide, driving the spreading claws to rotate and spread the covering, can efficiently and accurately expose the bleeding point, which not only improves the accuracy of the operation, but also ensures that the bleeding point can be quickly found and treated, thereby shortening the treatment time and improving the treatment efficiency.

[0044] 2. This gastroenterology digestive tract hemostat has claws and connecting mechanisms, and the direction of the bent portion of the claw can be adjusted according to the internal conditions of the digestive tract observed by the camera. The claw is pulled to make the connecting rod slide in the connecting plug. After the positioning hemispherical head is separated from the positioning groove, the claw can be flipped 180°, so that the claw can flexibly adapt to covers of different sizes and shapes, as well as bleeding points in different positions. After the flipping is completed, the claw is automatically reset and stably positioned under the action of the spring, ensuring its stability and reliability during use.

[0045] 3. This gastroenterology digestive tract hemostatic device is provided with a spray nozzle and a swing mechanism. After the spray nozzle is connected to the medicine pump through a quick-plug connector, the angle of the spray nozzle can be adjusted according to the situation of the bleeding point. The guide port is set to a snake shape, so that the angle of the spray nozzle can be changed when the guide block slides in the guide port, which not only makes the spraying operation more flexible, but also can ensure that the medicine can evenly cover the bleeding point, thereby improving the hemostatic effect. At the same time, when the length of the bleeding point is long, the spray nozzle can also swing to spray medicine, further ensuring that the bleeding point can be fully hemostatic in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0047] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0048] Figure 2 It is a schematic diagram of the structure of the fixed sleeve of the present invention;

[0049] Figure 3 This is a schematic diagram of the multi-angle structure of the fixed sleeve of the present invention;

[0050] Figure 4 This is a schematic diagram of the internal structure of the fixed sleeve of the present invention;

[0051] Figure 5 This is a schematic diagram of the structure of the connecting sleeve and the driving plate of the present invention;

[0052] Figure 6 This is a schematic diagram of the multi-angle structure of the connecting sleeve and the driving plate of the present invention;

[0053] Figure 7 This is a schematic diagram of the exploded structure of the adjusting gear and the supporting claw of the present invention;

[0054] Figure 8 This is a schematic diagram of the adjusting gear structure of the present invention.

[0055] The markings in the figure are:

[0056] 1. Insertion tube; 2. Fixed sleeve; 3. Arc plate; 4. Grip plate; 51. Drive plate; 52. Connecting sleeve; 53. Adjusting gear; 54. Support claw; 55. Fixed rack; 56. Pull wire; 6. Spray nozzle; 71. Fixed plate; 72. Guide port; 73. Guide block; 74. Fixed rod; 75. Connecting ring; 76. Operating wire; 8. Drug guide tube; 91. Connecting groove; 92. Connecting rod; 93. Spring; 94. Positioning hemispherical head; 95. Positioning groove; 10. Quick connector. DETAILED DESCRIPTION

[0057] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0058] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0059] like Figures 1 to 8 As shown, a digestive tract hemostat for gastroenterology includes an insertion tube 1; a fixed sleeve 2, fixedly mounted on the inner wall of the insertion end of the insertion tube 1; four arc-shaped plates 3, distributed in a circular array and fixedly mounted on the end of the fixed sleeve 2 away from the insertion tube 1; a grip plate 4, fixedly mounted on the end of the insertion tube 1 away from the fixed sleeve 2; an expansion mechanism, arranged on the inner side of the fixed sleeve 2; a spray nozzle 6, arranged inside the fixed sleeve 2; and a swing mechanism, arranged on the inner side of the expansion mechanism;

[0060] First, the insertion tube 1 can be inserted into the catheter that has been inserted into the digestive tract, and the insertion end of the insertion tube 1 passes through the catheter and is located in front of the bleeding point. At this time, if the bleeding point is covered by the bend or fold of the digestive tract, the covering can be expanded by the expansion mechanism so that the bleeding point can be observed through the camera on the catheter. After the covering is expanded, the bleeding point can be sprayed with medicine by the spray nozzle 6 for hemostasis treatment, and the medicine spraying angle of the spray nozzle 6 can be adjusted by the swing mechanism to cover the bleeding point. After the hemostasis is completed, the expansion mechanism can be reset.

[0061] like Figure 3 , Figure 4 As shown, the opening mechanism includes: a driving plate 51, which is slidably mounted on the inner wall of the fixed sleeve 2 through a sliding groove and a slider; a connecting sleeve 52, which is fixedly mounted on the side wall of the driving plate 51; four adjusting gears 53, which are rotatably mounted between the opposite ends of the four arc-shaped plates 3 through a rotating shaft, and the teeth on the adjusting gear 53 are set at one-fourth of the outer wall of the adjusting gear 53; four supporting claws 54, which are set on the outer walls of the four adjusting gears 53, and the width of the adjusting gear 53 and the supporting claws 54 are the same, and the outer wall of the adjusting gear 53 and the supporting claws 54 are aligned. The ends of the claws 54 fit together, and the end of the claw 54 away from the adjusting gear 53 is set to be bent; four fixed racks 55 are distributed in a ring array and fixedly installed on the outer wall of the connecting sleeve 52, and the fixed racks 55 are meshed with the adjusting gear 53; the pull wire 56 is fixedly installed on the end of the driving plate 51 away from the connecting sleeve 52, and the end of the pull wire 56 away from the driving plate 51 passes through the outer wall of one end of the insertion tube 1 located at the grip plate 4; four sets of connecting mechanisms are respectively set at the connection positions of the four adjusting gears 53 and the claws 54;

[0062] When it is necessary to open the covering on the bleeding point, the four claws 54 can be inserted into the gap of the covering, and the driving plate 51 can be pushed by the pull wire 56 to make the driving plate 51 slide along the fixed sleeve 2, and the connecting sleeve 52 can slide synchronously with the driving plate 51, and because the fixed rack 55 is engaged with the adjusting gear 53, the connecting sleeve 52 can drive the adjusting gear 53 and the claws 54 to rotate to open the covering when it slides, and at the same time, the connecting sleeve 52 can drive the spray nozzle 6 to approach the bleeding point when it slides, so as to carry out the subsequent spraying operation, and then the spraying operation can be carried out through the spray nozzle 6. After the spraying is completed, the pull wire 56 can be pulled to reset the driving plate 51, which can drive the claws 54 to reset.

[0063] like Figure 7 , Figure 8As shown, the connection mechanism includes: a connection groove 91, which is provided on the outer wall of the adjusting gear 53; a connecting rod 92, which is fixedly mounted on the end where the claw 54 is connected to the adjusting gear 53, and the connecting rod 92 is slidably connected to the connection groove 91; a spring 93, which is arranged between the inner side wall of the connection groove 91 and the end of the connecting rod 92; two positioning hemispherical heads 94, which are symmetrically fixedly mounted on the end where the claw 54 is connected to the adjusting gear 53, and the positioning hemispherical heads 94 are made of rubber material; two positioning grooves 95, which are symmetrically provided on the outer wall of the adjusting gear 53, and the positioning hemispherical heads 94 are adapted to the positioning grooves 95;

[0064] When the insertion tube 1 is inserted into the catheter, the direction of the bent portion of the support claw 54 can be adjusted according to the internal conditions of the digestive tract observed by the camera. During the adjustment, the support claw 54 can be pulled to make the connecting rod 92 slide in the connecting groove 91. At this time, the positioning hemispherical head 94 can be separated from the positioning groove 95, and the support claw 54 can be rotated and flipped 180°. After the flipping is completed, the support claw 54 is released and the connecting rod 92 can slide along the connecting groove 91 under the action of the spring 93. The positioning hemispherical head 94 is reinserted into the positioning groove 95 to position the support claw 54 so that it can be used stably. After the flipping of the support claw 54 is completed, a large area of ​​the covering can be supported, which can be used for the situation where the covering is large and the gap between the coverings is large.

[0065] like Figure 4 , Figure 5 , Figure 6 As shown, the swing mechanism includes: a fixed plate 71, fixedly mounted on the inner wall of the connecting sleeve 52; a guide opening 72, which is opened on the top surface of the fixed plate 71 and is set in a serpentine shape; a guide block 73, which is slidably mounted on the inner wall of the guide opening 72, and the spray nozzle 6 is fixedly connected to the guide block 73; a fixed rod 74, which is fixedly mounted on the end of the spray nozzle 6 away from the guide block 73; a connecting ring 75, which is rotatably sleeved on the outer wall of the fixed rod 74; an operating wire 76, which is fixedly mounted on the connecting ring 75 The outer wall of the spray nozzle 6, and the end of the operating wire 76 away from the connecting ring 75 passes through the driving plate 51 and the outer wall of the end of the insertion tube 1 located on the grip plate 4 in sequence, and the ends of the operating wire 76 and the pull wire 56 located outside the insertion tube 1 are fixedly installed with an operating handle, and the outer wall of the spray nozzle 6 is provided with a drug guide tube 8, and the end of the drug guide tube 8 away from the spray nozzle 6 passes through the driving plate 51 and the outer wall of the end of the insertion tube 1 located on the grip plate 4 in sequence, and the end of the drug guide tube 8 located outside the insertion tube 1 is fixedly installed with a quick-connect connector 10;

[0066] Before the medicine spray nozzle 6 sprays the hemostatic agent, the staff needs to quickly connect the quick-connect connector 10 to the medicine pump. After the connection is completed, the angle of the medicine spray nozzle 6 can be adjusted according to the situation of the bleeding point. During adjustment, the operating line 76 can be pushed through the connecting ring 75 and the fixing rod 74 to drive the medicine spray nozzle 6 to slide along the guide port 72 through the guide block 73. Since the guide port 72 is set in a serpentine shape, the angle of the medicine spray nozzle 6 can be adjusted when the guide block 73 slides in the guide port 72. After the adjustment is completed, the medicine spraying operation can be carried out. If the length of the bleeding point is long, the medicine spray nozzle 6 can be swung to spray the medicine so as to cover the bleeding point, ensuring that the bleeding point can be stopped in time.

[0067] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0068] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A digestive tract hemostatic device for gastroenterology, characterized in that: include: Insertion tube (1); A fixed sleeve (2) fixedly mounted on the inner side wall of the insertion end of the insertion tube (1); Four arc-shaped plates (3) are distributed in a circular array and fixedly mounted on an end of the fixed sleeve (2) away from the insertion tube (1); A gripping plate (4) fixedly mounted on an end of the insertion tube (1) away from the fixing sleeve (2); An expansion mechanism is arranged on the inner side of the fixing sleeve (2); A medicine spray nozzle (6) is arranged inside the fixed sleeve (2); The swing mechanism is arranged inside the spreading mechanism.

2. A digestive tract hemostatic device for gastroenterology according to claim 1, characterized in that: The expansion mechanism comprises: A driving plate (51) is slidably mounted on the inner wall of the fixed sleeve (2) via a sliding groove and a sliding block; A connecting sleeve (52) fixedly mounted on a side wall of the driving plate (51); Four adjusting gears (53) are rotatably mounted between opposite ends of the four arc-shaped plates (3) via a rotating shaft; Four supporting claws (54) are arranged on the outer walls of the four adjusting gears (53); Four fixed racks (55) are distributed in an annular array and fixedly mounted on the outer wall of the connecting sleeve (52), and the fixed racks (55) are meshed with the adjusting gear (53); A pull wire (56) is fixedly mounted on one end of the driving plate (51) away from the connecting sleeve (52), and the end of the pull wire (56) away from the driving plate (51) passes through the outer wall of one end of the insertion tube (1) located on the gripping plate (4); Four sets of connection mechanisms are respectively arranged at the connection positions between the four adjusting gears (53) and the supporting claws (54).

3. A digestive tract hemostatic device for gastroenterology according to claim 2, characterized in that: The teeth on the adjusting gear (53) are arranged at one quarter of the outer wall of the adjusting gear (53), and the width of the adjusting gear (53) is the same as that of the supporting claw (54).

4. A digestive tract hemostatic device for gastroenterology according to claim 3, characterized in that: The connecting mechanism comprises: A connecting groove (91) is provided on the outer wall of the adjusting gear (53); A connecting rod (92) is fixedly mounted on one end of the supporting claw (54) connected to the adjusting gear (53), and the connecting rod (92) is slidably connected to the connecting groove (91); A spring (93) is arranged between the inner side wall of the connecting groove (91) and the end of the connecting rod (92); Two positioning hemispherical heads (94) are symmetrically fixedly mounted on one end of the support claw (54) connected to the adjusting gear (53); Two positioning grooves (95) are symmetrically arranged on the outer wall of the adjusting gear (53).

5. A digestive tract hemostatic device for gastroenterology according to claim 4, characterized in that: The positioning hemispherical head (94) is matched with the positioning groove (95), and the positioning hemispherical head (94) is made of rubber material.

6. A digestive tract hemostatic device for gastroenterology according to claim 5, characterized in that: The swing mechanism comprises: A fixing plate (71) fixedly mounted on the inner wall of the connecting sleeve (52); A guide opening (72) is provided on the top surface of the fixing plate (71); A guide block (73) is slidably mounted on the inner wall of the guide opening (72), and the spray nozzle (6) is fixedly connected to the guide block (73); A fixing rod (74) fixedly mounted on one end of the spray nozzle (6) away from the guide block (73); A connecting ring (75) is rotatably sleeved on the outer wall of the fixing rod (74); An operating wire (76) is fixedly mounted on the outer wall of the connecting ring (75), and one end of the operating wire (76) away from the connecting ring (75) passes through the driving plate (51) and the outer wall of one end of the insertion tube (1) located on the gripping plate (4) in sequence.

7. A digestive tract hemostatic device for gastroenterology according to claim 6, characterized in that: The guide opening (72) is configured in a serpentine shape, and an operating handle is fixedly mounted on one end of the operating wire (76) and the pull wire (56) located outside the insertion tube (1).

8. A digestive tract hemostatic device for gastroenterology according to claim 7, characterized in that: The outer wall of the medicine spray nozzle (6) is provided with a medicine guide tube (8), and the end of the medicine guide tube (8) away from the medicine spray nozzle (6) passes through the driving plate (51) and the outer wall of one end of the insertion tube (1) located on the grip plate (4) in sequence.

9. A digestive tract hemostatic device for gastroenterology according to claim 8, characterized in that: A quick-connect connector (10) is fixedly mounted on one end of the drug-guiding tube (8) located outside the insertion tube (1).

10. A digestive tract hemostatic device for gastroenterology according to claim 9, characterized in that: The outer wall of the adjusting gear (53) is in contact with the end of the supporting claw (54), and one end of the supporting claw (54) away from the adjusting gear (53) is arranged in a bent shape.

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